(博易大师）pobo高低点指标公式
pobo高低点指标，可以显示前期高点和低点
n=13
HD:=FILTER(BACKSET(FILTER(REF(H,N)=HHV(H,2*N+1),N),N+1),N);
LD:=FILTER(BACKSET(FILTER(REF(L,N)=LLV(L,2*N+1),N),N+1),N);
DRAWNUMBER(HD,HIGH,HIGH,0),COLORGREEN,ALIGN1,VALIGN2;
DRAWNUMBER(LD,LOW,LOW,0),ALIGN1,VALIGN0;
